Ayad Y. AL- Qaisi; Ayad A. AL- Tikrity
Volume 24, Issue 1 , March 2024, , Pages 57-66
Abstract
Afield experiment was conducted out during Autumn agricultural season 2021-2022 at research station of soil sciences department and water resources, Agriculture collage, University of Tikrit. This study was established to investigate the effect of ground fertilizer with chelated iron and Zinc on growth ...
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Afield experiment was conducted out during Autumn agricultural season 2021-2022 at research station of soil sciences department and water resources, Agriculture collage, University of Tikrit. This study was established to investigate the effect of ground fertilizer with chelated iron and Zinc on growth characteristics of cauliflower (Brassica oleracea var.botrytis) in gypsum soil. It was carried out using randomized complete block design (RCBD). Two factors were included in this study, first factor was micronized chelated iron (Fe-EDDHA) added in three levels (0,4,8) Kg per ha-1, namely (F0, F1, F2) respectively, concentration of iron in this product was 6%. Second factor was micronized chelated Zinc (ZnEDTA) added in four levels (0,1,2,4) Kg per ha-1, namely (Zn0, Zn1, Zn2, Zn3) respectively, concentration of zinc in this product was 19%. Results showed that adding chelated iron to the ground in recommended quantity (Fe2)led to a significant increase in stem diameter (52.95 cm), number of leaves (27.21 leaf plant-1), plant height (80.81 cm), leaf area (66307 cm2), and relative chlorophyll (1.01 mg g-1). Results also showed that the addition of ground chelated zinc twice the recommended amount(Zn3) led to a significant increase in stem diameter amounted to (53.66 cm), number of leaves amounted to (27.15 leaf plant-1), plant height reached (82.42 cm) and leaf area reached (67224 cm2). Results of the research showed that interaction between chelated iron and zinc led to a significant increase, treatment (Zn3Fe2) excelled in stem diameter (54.06 cm), number of leaves (28.60 leaf plant-1), plant height (86.20 cm), leaf area (72830 cm2), and relative chlorophyll (1.08 mg g-1).
Firas Ahmed Alsajri; Mohammed Farhan; Nashmi Hilai
Volume 24, Issue 1 , March 2024, , Pages 156-169
Abstract
To investigate the effect of potassium fertilizer sources and level on sesame growth and yield in two different gypsum soils, two experiments were applied throughout the summer of 2022. The experiments included three factors, which were sources of potassium, potassium sulfate (KK2SO4) and potassium chloride ...
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To investigate the effect of potassium fertilizer sources and level on sesame growth and yield in two different gypsum soils, two experiments were applied throughout the summer of 2022. The experiments included three factors, which were sources of potassium, potassium sulfate (KK2SO4) and potassium chloride (KKCL), potassium levels, 0 (K00), 75 (K75), 150 (K150), and 300 (K300) kg ha-1, and levels of gypsum in the soil, 6.02 (Soil06.02) and 15.87 (Soil15.87) %. Completely Random Block Design (CRBD) with three replications was used to apply the experiments. The results indicated that KK2SO4 significantly impacted plant height (18%), plant dry weight (8%), branch no (11%), capsules no. (5%), 1000 seeds weight (13%), yield (13%), and oil percentage (9%) compared with KKCL. Similarly, potassium at K300 was significantly higher compared with the other potassium levels. Also, gypsum Soil15.87 significantly impacted plant height (11%), dry weight (11%), capsules no. (5%), 1000 seeds weight (19%), yield (11%), and oil percentage (12%) compared with gypsum soil with 6%. The interactions between the two study factors and among the three study factors effected significantly all the study traits. These results will be beneficial for sesame production and management in the Saladin area, Iraq.
Basim S. Obaid; Ragaa S. Salih; Yasir H. Ajrash
Volume 23, Issue 3 , September 2023, , Pages 51-63
Abstract
A laboratory experiment was conducted to study the behavior of copper in gypsum soils of different organic sources through a number of experiences, and knowledge of copper adsorption and release conditions in it, and used three equations physicochemical Langmuir, Freundlich, and Temkin. It was adopted ...
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A laboratory experiment was conducted to study the behavior of copper in gypsum soils of different organic sources through a number of experiences, and knowledge of copper adsorption and release conditions in it, and used three equations physicochemical Langmuir, Freundlich, and Temkin. It was adopted The coefficient of determination (R2 ) is a better choice equation to describe the adsorption of copper, the results showed that the Langmuir equation was enough for the description and evaluation of copper adsorption compared to the rest of the physicochemical equations used according to the highest coefficient of determination R2, and the efficiency of R2 was (92, 87, 65) % for each of the Langmuir and Freundlich equations and Temkin, respectively. The maximum adsorption values of the Langmuir equation were (61.728 - 25,906) mg.kg-1 and a bonding energy (0.731 - 0.128) L.mg-1, and Freundlech's equation showed the maximum adsorption values (1.346 - 0.855) L.mg-1 and a bonding energy (15.160 - 4.010) mg.kg-1, while the maximum adsorption values were to equation Temkin range between (35 - 29) mg.kg-1 energy connectivity ranging what between (0.495-0.185) L.kg-1, and from equation Temkin can that define type adsorption physical or a chemist and on the most chemical calendar for height valuable heat interaction bT, which ranges from (84.86 - 70.34). As for the results of liberating copper adsorbed, the highest values of liberated copper were recorded at. Levels add high from copper (50,100,150) mgkg-1 and at levels low add from copper (2,5,10) mgkg-1 be valuable Liberation copper zero (nill).
